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High Frequency PCB on TC350

  • August 08, 2022

Here is the Episode about the Rogers’ TC350 PCBs, which are comprised of PTFE, highly thermally conductive ceramic fillers and woven glass reinforcement. It offers us a unique combination of low insertion loss and higher thermal conductivity. This enables superior reliability and reduced operating temperatures in high power applications.


It has a successful usage in heat resistance, heat conduction and liquid cooling solutions and the like.


The dielectric constant (Dk) of TC350 is 3.5 at 10GHz, dissipation factor is 0.002 at 10GHz. This is a very low loss tangent value. Lower losses result in higher amplifier and antenna gains and efficiencies.


It also has low thermal coefficient of Dk at -9 ppm/°C, ranging -40°C to 140°C; low coefficient of thermal expansion on X, Y and Z axis (7, 7, and 23 ppm/°C respectively).This feature provides unsurpassed plated through hole reliability.


Last but not least, TC350 has high thermal conductivity of 0.72 W/m-K. It helps toreduce junction temperatures and extends the life of active components, which is critical for improving power amplifier reliability.


For TC350 PCBs, we can provide you with single layer board, double layer board, multi-layer board and hybrid types. These PCBs have wide thickness. They are the standard thickness such as 10 mils, 20 mils, 30 mils, 60mils. Finished copper on PCB is 1oz and 2oz.


Our maximum PCB size on high frequency material is 400mm by 500mm, it can be a single board in the sheet and also can be different designs in this panel. Solder mask of green, black, red and yellow etc is available in house.


There’s immersion gold, HASL, immersion silver, immersion tin, bare copper etc. for pads plating.


TC350 PCBs are widely used in many devices that need heat transferred fast, such as power amplifiers,backhaul radios, tower mounted amplifiers (TMA), tower mounted boosters (TMB), thermally cycled antennas, microwave combiners and power dividers etc.


TC350 PCB also has excellent dielectric constant stability across a wide temperature range. This helps power amplifier and antenna designers maximize gain and minimize dead bandwidth lost to dielectric constant drift as operating temperature changes. This DK stability is also critical to phase and impedance sensitive devices such as network transformers utilized for impedance matching networks.



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